The concept of "Small Farmer Large Field" primarily denotes the collective farming effort by numerous marginal or small farmers in a specific area. This approach involves unifying their resources, knowledge, and efforts to create a larger impact.

Option 1 talks about resettlement of displaced people from war, which has very little to do with the actual concept as it focuses on population displacement and not farming practices.

Option 3 refers to contract farming, where farmers sign an agreement with a corporate body to lease their land in return for a specified payment, glossing over the collaborative aspect of the "Small Farmer Large Field" term.

Option 4 describes a scenario where a corporation provides aid in the form of finances, knowledge, and resources to small farmers. This one too deviates from the mentioned concept as it revolves around corporate assistance rather than farmers` collaborative efforts.

Thus, option 2 perfectly embodies the notion of "Small Farmer Large Field" as it stresses the collective and harmonized farming operations of small landholders, offering them a possibly more productive and sustainable approach to agriculture.